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 $D0B4/53428/SCPU+68:   Optimization Mode Flags

   +----------+---------------------------------------------------+
   | Bits 7+6 |   00 = <A HREF="SCPU74.HTM">GEOS Optimization</A> Enabled                  |                                     |
   |          |   01 = <A HREF="SCPU75.HTM">VIC Bank 01 Optimization</A> Enabled           |
   |          |   10 = <A HREF="SCPU76.HTM">BASIC Optimization Enabled</A>                 |
   |          |   11 = <A HREF="SCPU77.HTM">No Optimization</A>                            |
   +----------+---------------------------------------------------+

     This register is read only with hardware registers disabled,
     Read/Write with hardware registers enabled.

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